Refactor display handling add Raspbian TFT display (#2998)

* Refactor display handling add Raspbian TFT display

* Add missed change

* Add static casts

* Add missed TFT refactor for RAK14014

* Add missed GPIO configuration

* Adds Native keyboard input option

* Get the ifdefs right

* CannedMessage send via queue, not run immediately.

* Fixup systemd service file

* Add display blanking for Raspberry Pi

* Add a couple missed key definitions

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Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

src/input/LinuxInputImpl.h

@@ -0,0 +1,21 @@
+#ifdef ARCH_RASPBERRY_PI
+#pragma once
+#include "LinuxInput.h"
+#include "main.h"
+
+/**
+ * @brief The idea behind this class to have static methods for the event handlers.
+ *      Check attachInterrupt() at RotaryEncoderInteruptBase.cpp
+ *      Technically you can have as many rotary encoders hardver attached
+ *      to your device as you wish, but you always need to have separate event
+ *      handlers, thus you need to have a RotaryEncoderInterrupt implementation.
+ */
+
+class LinuxInputImpl : public LinuxInput
+{
+  public:
+    LinuxInputImpl();
+    void init();
+};
+extern LinuxInputImpl *aLinuxInputImpl;
+#endif